在springjdbc中通过JNDI获得JDBC连接

隐马尔可夫模型。。。不知怎的 DataSourceUtils

Helper类,该类提供用于从 DataSource .

你要找的方法应该是:

• DataSourceUtils.getConnection(DataSource)

• DataSourceUtils.getGetConnection(DataSource)

基本示例(来自 MySQL documentation ):

// Create a new application context. this processes the Spring config
ApplicationContext ctx = new ClassPathXmlApplicationContext("ex1appContext.xml");
// Retrieve the data source from the application context
DataSource ds = (DataSource) ctx.getBean("dataSource");
// Open a database connection using Spring's DataSourceUtils
Connection c = DataSourceUtils.getConnection(ds);
try {
    // retrieve a list of three random cities
    PreparedStatement ps = c.prepareStatement(
        "select City.Name as 'City', Country.Name as 'Country' " +
        "from City inner join Country on City.CountryCode = Country.Code " +
        "order by rand() limit 3");
    ResultSet rs = ps.executeQuery();
    while(rs.next()) {
        String city = rs.getString("City");
        String country = rs.getString("Country");
        System.out.printf("The city %s is in %s%n", city, country);
    }
} catch (SQLException ex) {
    // something has failed and we print a stack trace to analyse the error
    ex.printStackTrace();
    // ignore failure closing connection
    try { c.close(); } catch (SQLException e) { }
} finally {
    // properly release our connection
    DataSourceUtils.releaseConnection(c, ds);
}

据我所知,对你真正有用的是 JndiObjectFactoryBean . 这个Spring工厂bean返回JNDI中发布的对象。

你可以这样配置它,然后得到 Connection DataSourceUtils 在注入的 DataSource :

<bean name="myDataSourceInJndi" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName">
        <value>java:comp/env/jdbc/MyDataSource</value>
    </property>
</bean>

<bean name="myBean" class="MyClass">
...
    <property name="dataSource" ref="myDataSourceInJndi">        
...
</bean>

供将来参考:jndi在应用服务器上管理,即:独立.xml(Wildfly)带Postgresql驱动程序:

 <datasource jta="true" jndi-name="java:comp/env/jdbc/MyDataSource" pool-name="myDS" enabled="true">
                <connection-url>jdbc:postgresql:[<//host>[:<5432>/]]<database></connection-url>
                <driver>postgresql</driver>
                <security>
                    <user-name>$USER</user-name>
                    <password>$PWD</password>
                </security>
            </datasource>